Acer circinatum

Acer circinatum

''Acer circinatum'' is a species of maple native to western North America, from southwest British Columbia to northern California, usually within 300 kilometres of the Pacific Ocean coast, found along the Columbia Gorge and Coastal Forest. It belongs to the ''Palmatum'' group of maple trees native to East Asia with its closest relatives being the ''Acer japonicum'' and ''Acer pseudosieboldianum'' . It can be difficult to distinguish from these species in cultivation. It is the only member of the ''Palmatum'' group that resides outside of Asia.
Vine Maple Very common native Pacific NW maple tree. Grows easily and is valued for being decorative, especially for it's fall foliage.  Acer circinatum,Geotagged,United States,acer circinatum


It most commonly grows as a large shrub growing to around 5 to 8 metres tall, but it will occasionally form a small to medium-sized tree, exceptionally to 18 metres tall. The shoots are slender and hairless.

The leaves are opposite, and palmately lobed with 7 to 11 lobes, almost circular in outline, 3 to 14 centimetres long and broad, and thinly hairy on the underside; the lobes are pointed and with coarsely toothed margins. The leaves turn bright yellow to orange-red in fall. The flowers are small, 6 to 9 millimetres in diameter, with a dark red calyx and five short greenish-yellow petals; they are produced in open corymbs of 4 to 20 together in spring. The fruit is a two-seeded samara, each seed 8 to 10 millimetres in diameter, with a lateral wing 2 to 4 centimetres long.

Vine Maple trees can bend over easily. Sometimes, this can cause the top of the tree to grow into the ground and send out a new root system, creating a natural arch.


It typically grows in the understory below much taller forest trees, but can sometimes be found in open ground, and occurs at altitudes from sea level up to 1,500 metres .


It is occasionally cultivated outside its native range as an ornamental tree, from Juneau, Alaska and Ottawa, Ontario to Huntsville, Alabama, and also in northwestern Europe.


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SpeciesA. circinatum